CN205065707U - Thick moulded coal mud spray tube of limit - Google Patents
Thick moulded coal mud spray tube of limit Download PDFInfo
- Publication number
- CN205065707U CN205065707U CN201520737144.5U CN201520737144U CN205065707U CN 205065707 U CN205065707 U CN 205065707U CN 201520737144 U CN201520737144 U CN 201520737144U CN 205065707 U CN205065707 U CN 205065707U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- coal slime
- fiaring cone
- limit
- jet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 66
- 239000007921 spray Substances 0.000 title abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model discloses a thick moulded coal mud spray tube of limit, including import pipe, fiaring cone, nozzle and fixed rib, the feed end and the import union coupling of nozzle, the fiaring cone is installed in the discharge end of nozzle through fixed rib, the outline of fiaring cone and the inner chamber phase -match of nozzle, just the lateral wall of fiaring cone has interval a with the inner wall of the discharge end of nozzle. The utility model discloses a combined action of nozzle and fiaring cone, the restriction is from the thickness of nozzle blowout coal slime, and these coal slimes that are limited thickness split into the fritter easily under the disturbance of gravity or other power, and then the coal slime neither can can not get abundant burning because of forming big group, also can not be because of blow into the fritter be just taken out of furnace by the flue gas at too late after -flame many times, so guaranteed the coal slime and can fully burn, avoid the wasting of resources.
Description
Technical field
The utility model relates to coal combustion technical equipment, specifically a kind of limit thicker coal slime jet pipe.
Background technology
Coal slime is a kind of byproduct of waterpower coal washing, coal separation process, the mainly mixture of fine grained coal and water, also containing certain impurity, because water content height becomes thick slurry shape.Coal slime comprehensive utilization is a difficult problem for puzzlement coal industry always, directly abandons contaminated environment; Its slurry condition is difficult to long-distance sand transport; General coal-burning boiler uses dry coal cinder as fuel, and therefore coal slime also cannot use as boiler oil.
And CFBB is a kind of to the good boiler of fuel adaptive capacity, containing a large amount of high temperature (800 ~ 950 DEG C) circulation fluidized bed material in stove, the fuel newly added in stove generally only accounts for 3% ~ 5% of bed material in stove, the fuel entering stove is dry rapidly and catch fire under high hotbed material heating, and therefore CFBB can use inferior fuel.Therefore, for reducing the wasting of resources, CFBB can be mixed and burn a part of coal slime, with conventional coal fuel multifuel combustion.Coal slime is conveyed into CFBB 3 kinds of modes: coal slime spray gun is atomized machinery in the middle part of stove, stove and injects and the injection of furnace roof gravity.The energy consumption needing loss larger due to first two mode and operating cost, so coal slime is conveyed into CFBB by the mode mostly adopting furnace roof gravity to inject at present.And furnace roof gravity injects the normal coal slime jet pipe that adopts at present, this coal slime jet pipe is only made up of a geat pipe, and this geat pipe only needs coal slime to be delivered to boiler top, relies on gravity that coal slime just can be made to fall in stove.But when the flow of single geat pipe is excessive, the coal slime of input CFBB forms agglomerate, and the coal slime of this agglomerate is not easily once blown into fritter, causes efficiency of combustion low; And repeatedly blow, then coal slime can be caused to produce fine grained, and this this fine grained has little time after-flame by flue gas band flake hearth-tapping, thus causes efficiency of combustion to reduce.Meanwhile, if the coal slime of agglomerate can not be blown in time, fall burner hearth bottom and form large slag, also may cause clinkering at boiler bottom.
Utility model content
The purpose of this utility model is the deficiency overcoming the existence of above prior art, provides a kind of structure simple, the limit thicker coal slime jet pipe that the coal slime of agglomerate can be made easily to blow
In order to achieve the above object, the utility model is by the following technical solutions: a kind of limit thicker coal slime jet pipe, comprise inlet tube, fiaring cone, nozzle and fixing rib, the feed end of described nozzle is connected with inlet tube, and described fiaring cone is installed in the discharge end of nozzle by fixing rib; The outline of described fiaring cone and the inner chamber of nozzle match, and the inwall of the sidewall of described fiaring cone and the discharge end of nozzle has spacing a.
Preferably, described nozzle is horn-like.
Preferably, the quantity of described fixing rib is 2 ~ 8, the inwall of one end fixed nozzle of described fixing rib, and the other end of described fixing rib is fixed on the sidewall of fiaring cone; Described fixing rib distributes in the even circumferential of fiaring cone.
Preferably, the size of described spacing a is 50mm ~ 80mm.
Preferably, the end face of the discharge end of described nozzle and the outer end end face of fiaring cone concordant.
Preferably, the inner of described fiaring cone is smooth surface shape.
Preferably, described fiaring cone is positioned at the centre of nozzle discharge end.
The utility model, relative to prior art, has following advantage and effect:
This limit thicker coal slime jet pipe is by establishing nozzle and fiaring cone in inlet tube increase, the acting in conjunction of nozzle and fiaring cone, limit the thickness from nozzle ejection coal slime, these coal slimes being limited thickness are under the disturbance of gravity or other power, easily split into fritter, then coal slime both can not can not get Thorough combustion because forming agglomerate, also after-flame can not had little time just by flue gas band flake hearth-tapping because repeatedly blowing into fritter, therefore under the acting in conjunction of nozzle and fiaring cone, coal slime can Thorough combustion, also avoid the coal slime forming agglomerate to fall at the bottom of burner hearth and form large slag, namely clinkering at boiler bottom can not be caused.The structure of this limit thicker coal slime jet pipe is simple, low cost of manufacture.This limit thicker coal slime jet pipe arranges fiaring cone at the discharge end of nozzle, and this does not need atomizing piece, therefore flow resistance is little, and flow area is insensitive to impurity greatly, and energy consumption is little.
Accompanying drawing explanation
Fig. 1 is the sectional view of limit thicker coal slime jet pipe of the present utility model.
Fig. 2 is the right view of limit thicker coal slime jet pipe of the present utility model.
Detailed description of the invention
For ease of it will be appreciated by those skilled in the art that the utility model is described in further detail below in conjunction with drawings and Examples.
As depicted in figs. 1 and 2, this limit thicker coal slime jet pipe, comprises inlet tube 1, fiaring cone 2, nozzle 3 and fixing rib 4, and the feed end of described nozzle 3 is connected with inlet tube 1, and described fiaring cone 2 is installed on by fixing rib 4 in the discharge end of nozzle 3; The outline of described fiaring cone 2 and the inner chamber of nozzle 3 match, and the inwall of the discharge end of the sidewall of described fiaring cone 2 and nozzle 3 has spacing a.Concrete, described nozzle 3 is in horn-like, and namely the internal diameter of described nozzle and the size of external diameter increase gradually along the coal slime direction of motion.Then from the direction away from inlet tube 1, the diameter of the inner chamber of nozzle 3 increases gradually, and namely from the direction of motion of coal slime, the diameter of the inner chamber of nozzle 3 increases gradually; Meanwhile, the external diameter of fiaring cone 2 also increases gradually from the direction of motion of coal slime.And in order to the smoothness of the motion that ensures coal slime, the inner of fiaring cone 2, i.e. head 201, in smooth surface shape, as spherically shape, oval planar or parabola planar.This is arranged, tool a at regular intervals is formed between the inwall of nozzle 3 and the sidewall of fiaring cone 2, then coal slime since then spacing a flow out time, the thickness of coal slime is less, under the disturbance of gravity or other active force, the coal slime that these thickness are less easily divides and is split into fritter, thus makes coal slime can Thorough combustion, therefore coal slime can not be carried down because blowing, and also can not form too little bulk because repeatedly blowing.
The quantity of described fixing rib 4 is 4, the inwall of one end fixed nozzle 3 of described fixing rib 4, and the other end of described fixing rib 4 is fixed on the sidewall of fiaring cone 2; 4 fixing rib 4 distribute in the even circumferential of fiaring cone 2.Fixing rib 4 is for fixing fiaring cone 2, its quantity can, fiaring cone 2 large according to the inner chamber of nozzle 3 size etc. and determine.
The size of described spacing a is 65mm.
For improving the structural compactness of jet pipe 3, the end face of the discharge end of described nozzle 3 is concordant with the outer end end face of fiaring cone 2.
The inner spherically shape of described fiaring cone 2.This structure can prevent coal slime to be piled up in the inner of fiaring cone 2, improves the smoothness of coal slime flowing.
Described fiaring cone 2 is positioned at the centre of nozzle 3 discharge end.This structure can make the thickness of the coal slime flowed out along fiaring cone surrounding even, and avoid some coal slime blocked up, another part coal slime is excessively thin, thus ensures that coal slime can Thorough combustion.
Above-mentioned detailed description of the invention is preferred embodiment of the present utility model; can not limit the utility model; the any of other does not deviate from the technical solution of the utility model and the substitute mode of the change made or other equivalence, is included within protection domain of the present utility model.
Claims (7)
1. limit a thicker coal slime jet pipe, comprise inlet tube, it is characterized in that: also comprise fiaring cone, nozzle and fixing rib, the feed end of described nozzle is connected with inlet tube, and described fiaring cone is installed in the discharge end of nozzle by fixing rib; The outline of described fiaring cone and the inner chamber of nozzle match, and the inwall of the sidewall of described fiaring cone and the discharge end of nozzle has spacing a.
2. limit thicker coal slime jet pipe according to claim 1, is characterized in that: described nozzle is horn-like.
3. limit thicker coal slime jet pipe according to claim 1, is characterized in that: the quantity of described fixing rib is 2 ~ 8, the inwall of one end fixed nozzle of described fixing rib, and the other end of described fixing rib is fixed on the sidewall of fiaring cone; Described fixing rib distributes in the even circumferential of fiaring cone.
4. limit thicker coal slime jet pipe according to claim 1, is characterized in that: the size of described spacing a is 50mm ~ 80mm.
5. limit thicker coal slime jet pipe according to claim 1, is characterized in that: the end face of the discharge end of described nozzle is concordant with the outer end end face of fiaring cone.
6. limit thicker coal slime jet pipe according to claim 1, is characterized in that: the inner of described fiaring cone is smooth surface shape.
7. limit thicker coal slime jet pipe according to claim 1, is characterized in that: described fiaring cone is positioned at the centre of nozzle discharge end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737144.5U CN205065707U (en) | 2015-09-22 | 2015-09-22 | Thick moulded coal mud spray tube of limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737144.5U CN205065707U (en) | 2015-09-22 | 2015-09-22 | Thick moulded coal mud spray tube of limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205065707U true CN205065707U (en) | 2016-03-02 |
Family
ID=55392257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520737144.5U Expired - Fee Related CN205065707U (en) | 2015-09-22 | 2015-09-22 | Thick moulded coal mud spray tube of limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205065707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468941A (en) * | 2018-04-23 | 2018-08-31 | 宣化钢铁集团有限责任公司 | A kind of multiple exit oil and gas distributor |
-
2015
- 2015-09-22 CN CN201520737144.5U patent/CN205065707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468941A (en) * | 2018-04-23 | 2018-08-31 | 宣化钢铁集团有限责任公司 | A kind of multiple exit oil and gas distributor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |